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<\/p>\nLocal officials join UL Solutions leadership to celebrate the opening of the UL Solutions HVACR Center of Excellence expansion on Oct. 12 in Plano, Texas.<\/p>\n
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The drumbeat of monster hurricanes in the Pacific has broken a record for nasty long-lasting storms east of the international date line, turbocharged by nature\u2019s supersized El Ni\u00f1o, scientists said.<\/p>\n
\u201cSince September 20th, when Odalys formed, it\u2019s been berserk,\u201d said Colorado State University researcher Phil Klotzbach, who forecasts and studies storm activity. \u201cThis year just everything that forms is just lasting a long time and getting really powerful.\u201d<\/p>\n
One of the key measurements meteorologists use to judge hurricane seasons is called accumulated cyclone energy, or ACE, which includes a storm\u2019s wind speed and longevity. On Sunday, a section of the Pacific east of the date line, which brews storms headed for Hawaii, Mexico and the U.S. West Coast, passed the old mark set in 2018. The area is still going strong with Hurricane Simon and appears on the verge of spawning another one that will really ramp up in strength, Klotzbach said.<\/p>\n
On Tuesday, the Pacific will tie a record for most days with a hurricane spinning and is likely to break it soon after that, Klotzbach said.<\/p>\n
\u201cIt feels like almost everything that can spin up does spin up,\u201d said University of Arizona atmospheric scientist Kim Wood.<\/p>\n
Several meteorological factors have come together to supercharge the Pacific, chief among them the El Ni\u00f1o, Klotzbach and other hurricane researchers said. An El Ni\u00f1o weakens and shifts the high altitude vertical winds that otherwise can dampen or even decapitate storms. In the Pacific, that wind shear runs east to west, generally with the direction storms travel, so it’s like riding a bicycle with a tail wind, Klotzbach said.<\/p>\n
Meanwhile, the weather pattern has dampened hurricanes in the Atlantic, where the ACE is less than 18% of what’s normal for this time of year. El Ni\u00f1o makes the wind shear in the Atlantic like riding into a headwind, he said.<\/p>\n
Another factor is warm water, which serves as hurricane fuel. By definition El Ni\u00f1o is a warming of the equatorial Pacific that changes weather worldwide. In the Pacific storm basin, it’s several degrees Fahrenheit warmer than normal, said Kristen Corbosiero, a professor of storm atmospheric sciences at the University at Albany in New York.<\/p>\n
Usually in the Pacific, the extra warm storm-friendly water doesn’t run as deep as it does in the Atlantic. So when one storm goes over a patch of water, it brings up cold water and makes it hard for a subsequent storm in the same area to stay alive, Wood said. But not this year.<\/p>\n
Hurricane Rachel, whose remnants swamped Las Vegas over the weekend, didn’t suffer as it went over, churned up by Category 5 Hurricane Polo, Wood said. She said the waters are warm from both El Ni\u00f1o and climate change from the burning of coal, oil and gas.<\/p>\n
Another factor in recent storms was a counterclockwise atmosphere spin over Central America \u2014 called a gyre \u2014 that spits out seeds of stormy weather that can form into hurricanes. It spit out both the Atlantic’s Isaias and the Pacific’s Simon at about the same time, Corbosiero and Klotzbach said.<\/p>\n
The last five Pacific hurricanes \u2014 long-lasting Nolo, Odalys, Polo, Rachel and Simon \u2014 have all reached major status with winds of at least 111 mph (178.6 kph). Nolo, Odalys and Simon hit Category 4, while Polo set the record for time spent at Category 5 at two-and-a-half days.<\/p>\n
When Klotzbach made those calculations on the record-breaking activity of the eastern and central Pacific, he looked at all storms east of the date line.<\/p>\n
That’s a slightly different approach from the National Oceanic and Atmospheric Administration, which breaks that broad area into two regions. Neither NOAA-defined region is quite at record levels for ACE yet; put together they are.<\/p>\n
Part of that is because often when one of those subregions is more active, the other isn’t quite as crazy, but in 2026 they both are hyperactive, Wood said.<\/p>\n
\u201cThis is the first year that both sides have been this active together,\u201d Wood said. \u201cUsually it\u2019s kind of focused more on one or the other, so that speaks to just the wide extent across this region of where there\u2019s been that lower shear, those warmer waters, and that higher moisture.\u201d<\/p>\n
Off the Mexican coast is a disturbance that the National Hurricane Center gives a 90% chance of becoming Tropical Storm Trudy, which then could power up to something big, Klotzbach and Corbosiero said.<\/p>\n
\u201cIt seems like that area is just one after another. So I would not be surprised to have another storm,\u201d Corbosiero said. \u201cThis year, because of the El Ni\u00f1o, we do have very favorable conditions. So as long as there\u2019s some sort of the seeds either from the gyre or from remnant ends of cold fronts, it seems like this is going to continue for a bit.\u201d<\/p>\n
The Associated Press\u2019 climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP\u2019s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.<\/p>\n
A resident enters his home surrounded by water brought by Hurricane Polo in Puerto San Carlos, Baja California Sur state, Mexico, Tuesday, Sept. 29, 2026. (AP Photo\/Eduardo Verdugo)<\/p>\n <\/a><\/p>\n Waves hit a walkway outside homes in Long Beach, Calif., Saturday, Oct. 10, 2026, as Tropical Storm Rachel approaches. (AP Photo\/William Liang)<\/p>\n <\/a><\/p>\n
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